diff options
author | Nick Brassel <nick@tzarc.org> | 2021-08-29 08:20:25 +1000 |
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committer | Nick Brassel <nick@tzarc.org> | 2021-08-29 08:20:25 +1000 |
commit | f061ca497464fe85284906fb163a33eaee7a91ef (patch) | |
tree | 33ef1bfb529aed382e8526c607c4e18717f92571 /platforms/avr/drivers/ssd1306.h | |
parent | ff65185dec6f97be1eb49f17cea526a0d0bbf3d6 (diff) | |
parent | 4bad375d7c09d949a9dcdd4feba147c9c7a67ec6 (diff) |
Breaking changes develop merge to master, 2021Q3 edition. (#14196)
Diffstat (limited to 'platforms/avr/drivers/ssd1306.h')
-rw-r--r-- | platforms/avr/drivers/ssd1306.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/platforms/avr/drivers/ssd1306.h b/platforms/avr/drivers/ssd1306.h new file mode 100644 index 0000000000..6eecdcfaa4 --- /dev/null +++ b/platforms/avr/drivers/ssd1306.h @@ -0,0 +1,87 @@ +#pragma once + +#include <stdbool.h> +#include <stdio.h> +#include "config.h" + +enum ssd1306_cmds { + DisplayOff = 0xAE, + DisplayOn = 0xAF, + + SetContrast = 0x81, + DisplayAllOnResume = 0xA4, + + DisplayAllOn = 0xA5, + NormalDisplay = 0xA6, + InvertDisplay = 0xA7, + SetDisplayOffset = 0xD3, + SetComPins = 0xda, + SetVComDetect = 0xdb, + SetDisplayClockDiv = 0xD5, + SetPreCharge = 0xd9, + SetMultiPlex = 0xa8, + SetLowColumn = 0x00, + SetHighColumn = 0x10, + SetStartLine = 0x40, + + SetMemoryMode = 0x20, + ColumnAddr = 0x21, + PageAddr = 0x22, + + ComScanInc = 0xc0, + ComScanDec = 0xc8, + SegRemap = 0xa0, + SetChargePump = 0x8d, + ExternalVcc = 0x01, + SwitchCapVcc = 0x02, + + ActivateScroll = 0x2f, + DeActivateScroll = 0x2e, + SetVerticalScrollArea = 0xa3, + RightHorizontalScroll = 0x26, + LeftHorizontalScroll = 0x27, + VerticalAndRightHorizontalScroll = 0x29, + VerticalAndLeftHorizontalScroll = 0x2a, +}; + +// Controls the SSD1306 128x32 OLED display via i2c + +#ifndef SSD1306_ADDRESS +# define SSD1306_ADDRESS 0x3C +#endif + +#define DisplayHeight 32 +#define DisplayWidth 128 + +#define FontHeight 8 +#define FontWidth 6 + +#define MatrixRows (DisplayHeight / FontHeight) +#define MatrixCols (DisplayWidth / FontWidth) + +struct CharacterMatrix { + uint8_t display[MatrixRows][MatrixCols]; + uint8_t *cursor; + bool dirty; +}; + +extern struct CharacterMatrix display; + +bool iota_gfx_init(void); +void iota_gfx_task(void); +bool iota_gfx_off(void); +bool iota_gfx_on(void); +void iota_gfx_flush(void); +void iota_gfx_write_char(uint8_t c); +void iota_gfx_write(const char *data); +void iota_gfx_write_P(const char *data); +void iota_gfx_clear_screen(void); + +void iota_gfx_task_user(void); + +void matrix_clear(struct CharacterMatrix *matrix); +void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c); +void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c); +void matrix_write(struct CharacterMatrix *matrix, const char *data); +void matrix_write_P(struct CharacterMatrix *matrix, const char *data); +void matrix_render(struct CharacterMatrix *matrix); |